From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f178.google.com (mail-dy1-f178.google.com [74.125.82.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 58FE73F5BC4 for ; Fri, 15 May 2026 21:15:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778879722; cv=none; b=UUWkMzBMAyu4NyfNcjUwh1WwM03Q98h49Bd/V4mC/5glBtCYYSbQdoO/BiqkWvTiWpCFvZPlIfQy0TDa2Wt1s9vp1Xy6EPOmFBqpsboJfAxqsnaWgpw8TiDDIX8k2kxXncwsLuz6WgHNC6+ZW93PkiUQkP04Oh4DGB1QN8iPJx8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778879722; c=relaxed/simple; bh=EYoiytDPHAwrp//ZCSS8x2mbpMMq39lmGS1yWEcEk0Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=a4ZteSkf4XrWP+zGTS0wLWYs5vs/ZKi2RhN6PkD9WFJ5mYvCSKtCfInULxWhMRBdk5O0x5AreH5/1p7i2mnIljvO/2VDlt0rPzRR6NDbiQ4RtmsNuhidzfVobdPwrgoCGSQARfmx7RGKdrX/OUei2C7mPRsRycKlXcxBqIJD1pw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=F1qUkByA; arc=none smtp.client-ip=74.125.82.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="F1qUkByA" Received: by mail-dy1-f178.google.com with SMTP id 5a478bee46e88-2f00a567cfaso833247eec.0 for ; Fri, 15 May 2026 14:15:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778879721; x=1779484521; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bjgxy9jrMUn+tA5MZsUkk9qLfIPrTHgv6m9jj+0YWR4=; b=F1qUkByArkNhkX8Vb784ExX/rl6QJS4DBW18WWjmqir3frGenB8qERsSXnGvklGLAv P95lUGWZ/GjM5Y8NDhtwk+h7BAZdVVuhvyz3q5hRMQNdOwOddJhcvGUoFa/vXVClvFKe wqjcw/pK5nDmkWn+eoT576g/DS1UOQF6lw1/oFI5+Mv5RZ6s3bdSJPul7HgcuiSoNehY aqCyhEYdbq1d7DY9fGbSDrwyFgxPSFLNb2nXjUjBvJQ/+WY7nO+CLHiKS8na6SFKYbbN kICn8lsE/ST/LYMxnVpC+KaX+OIkFBQXRIJmARETvIikWBupy+rK2Nc8yIpJ4zTTneK/ i97Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778879721; x=1779484521; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=bjgxy9jrMUn+tA5MZsUkk9qLfIPrTHgv6m9jj+0YWR4=; b=i+RsChVqINvOONYPKELeyE3hjpl/WQxvi29cCAw3uDxoAR0wbXAfdoxdYq9yPyEOwI gLmBiorNcI5391jtfFKHUZJBHhvQJlAm5bw6cflrM94T737HEPHuqn1p+G8gKr28qfbK K7sx1UntWW2DjI8zGnNBlaqQA+U50+f9bnAqLUihxPNrXFMwJ1fgsH9BEnorXvfKkHPU MaS+zcPEQP6fXa3TE816oJ1R5miFfKADBAzScpHczlCkIcVCKhI1z2cZN7yZU/x0AYQt 7yrXIpZlgGx4b47pN6yMRY57FYk1gOvwJJ0cci6W/puJctv+y6j2eHc3K8X+iQKj6qts YQ3g== X-Forwarded-Encrypted: i=1; AFNElJ+hv7YFOjlXFTU/P4m0bpf7XRjwZjlBAOK9236OWMG3RkNhZYHdZ/uNXhKTBc6UA/xfM701tz2BtLI=@vger.kernel.org X-Gm-Message-State: AOJu0Yw7Rhn6AoSxknD0bl+iJTPMlr1zSxz96fgVf7uLz1VB9ROhOEP+ tqa38h2xd+7hvlmigDdKBk8u6vNq6DCbRokClaE2LBmEbufWgG6fpWtX X-Gm-Gg: Acq92OEEvFaW9PWdqtnLhJ+eNTdQ0hXJU5Q8a4ywjB0tv5pfaYmiOVKcwztzELjlLEz JkZYCnuFjgQZuCAccJjDOA5o0aD54tBOCqSVR/0ZKKv10CBrswrMIR1uDLPbGSgrgBxA9O183X9 0DCU5z0KYgSDFNgcOK3jP8zAZvQ9YlbjcVAN4FEiU7GDa11JxjLryHwN1BXJWT4C1zN4Fl5Dk08 qHLEO+nZUJLxa31yX7kS0HLy7IQsJS2JkMB9t3HNmBxueMIeTep+Z+GVGP4MXlfgeyj1r6sa8cA 7dLtcnH7q4ifwD4ydfaqQqzlYbfRCrMppjO1MgWrP0JwqbNpmMQQCtml0at7bF2lxYNgPeBGqh2 cUep7MNloq2jhsyx4te84nRDbODhTsIDTqKK/aXi+eUBAumDOoZ5OgUnwo7s5ktJQRANeFTR8iO e3gtm8oga+oljzaJnxU4veE2HJDsfOVtc= X-Received: by 2002:a05:7300:2316:b0:2f3:5d44:eeba with SMTP id 5a478bee46e88-3025fa54325mr4525827eec.6.1778879720563; Fri, 15 May 2026 14:15:20 -0700 (PDT) Received: from mimas.lan ([2603:8000:df01:38f7:a6bb:6dff:fecf:e71a]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30293e2e3c0sm9975127eec.3.2026.05.15.14.15.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 May 2026 14:15:20 -0700 (PDT) From: Ross Philipson To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, kexec@lists.infradead.org, linux-efi@vger.kernel.org, iommu@lists.linux.dev Cc: ross.philipson@gmail.com, dpsmith@apertussolutions.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, ardb@kernel.org, mjg59@srcf.ucam.org, James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca, luto@amacapital.net, nivedita@alum.mit.edu, herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net, ebiederm@xmission.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, kanth.ghatraju@oracle.com, daniel.kiper@oracle.com, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com Subject: [PATCH v16 24/38] x86/msr: Add variable MTRR base/mask and x2apic ID registers Date: Fri, 15 May 2026 14:13:56 -0700 Message-ID: <20260515211410.31440-25-ross.philipson@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260515211410.31440-1-ross.philipson@gmail.com> References: <20260515211410.31440-1-ross.philipson@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add the MSR values required by Secure Launch to locate particular CPU cores during application processor (AP) startup, and restore the MTRR state after an Intel TXT launch. Signed-off-by: Ross Philipson --- arch/x86/include/asm/msr-index.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index 6673601246b3..2a95e3389622 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -408,6 +408,9 @@ #define MSR_IA32_RTIT_OUTPUT_BASE 0x00000560 #define MSR_IA32_RTIT_OUTPUT_MASK 0x00000561 +#define MSR_MTRRphysBase0 0x00000200 +#define MSR_MTRRphysMask0 0x00000201 + #define MSR_MTRRfix64K_00000 0x00000250 #define MSR_MTRRfix16K_80000 0x00000258 #define MSR_MTRRfix16K_A0000 0x00000259 @@ -960,6 +963,8 @@ #define MSR_IA32_APICBASE_ENABLE (1<<11) #define MSR_IA32_APICBASE_BASE (0xfffff<<12) +#define MSR_IA32_X2APIC_APICID 0x00000802 + #define MSR_IA32_UCODE_WRITE 0x00000079 #define MSR_IA32_MCU_ENUMERATION 0x0000007b -- 2.47.3